/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.streaming.api.operators;

import org.apache.flink.streaming.runtime.streamstatus.StreamStatus;
import org.apache.flink.streaming.runtime.streamstatus.StreamStatusMaintainer;

/** A testing implementation of {@link StreamStatusMaintainer}. */
public class MockStreamStatusMaintainer implements StreamStatusMaintainer {
    private StreamStatus currentStreamStatus = StreamStatus.ACTIVE;

    @Override
    public void toggleStreamStatus(StreamStatus streamStatus) {
        if (!currentStreamStatus.equals(streamStatus)) {
            currentStreamStatus = streamStatus;
        }
    }

    @Override
    public StreamStatus getStreamStatus() {
        return currentStreamStatus;
    }
}
